White Cloud Ultraslim Water Resistant Outdoor Sport Nylon Stealth Small Running Travel Waist Bag Material:nylon. Size:32x0.3x11.5cm/12.6x0.12x4.53inch(LxWxH). Adjustable strap with plastic buckle. The bag has three zippered pockets which is good enough to carry your phone,cash,credit cards and keys. It is quite slim, light and bulky.It is so flat that can be worn under clothes,very secure and safe.